Unable to take character input in java

Question

i am new to java and i want to take an input as follows:

0 2 a

I am able to take the integer input but unable to take the character input.

i am using following code

Scanner s = new Scanner(System.in);
int o = s.nextInt();
    if(o==0)
        {
             int l=s.nextInt();
             char c=s.next().charAt(0);
        }

I don't see anything wrong in your code. Can you explain your problem a bit more. — Eranda
– Eranda, Commented Jul 12, 2015 at 18:01

Ankur Anand · Accepted Answer · 2015-07-12 18:09:05Z

1

May be Thats because the Scanner#nextInt method does not read the last newline character of your input, and thus that newline is consumed in the next call to Scanner#nextLine.

Fire a new Line after nextInt.

    Scanner s = new Scanner(System.in);
    int o = s.nextInt();
    s.nextLine();
        if(o==0)
            {
                 int l=s.nextInt();
s.nextLine();
                 char c=s.next().charAt(0);
            }

edited Jul 12, 2015 at 18:09

answered Jul 12, 2015 at 18:00

Ankur Anand

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1 Comment

Bernhard Barker Over a year ago

-1. The next call to nextInt will ignore any upcoming line breaks. There is no call to nextLine in the code. Mixing nextLine and next or nextInt is generally not a good idea exactly because of these ignored nextLine statements you have to use, but if you stick to one or the other, you should not have any problems, and these aren't necessary. A comment on the question links to the code in the question working fine.

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